00251: The map must have the same coordinate system as the network dataset

You are packaging a map or project that contains a map that has a network dataset layer in the map. The coordinate system of the map is different than the coordinate system of the network dataset.

Solutions

Change the coordinate system of your map to match the coordinate system of your network dataset. For more information on changing the coordinate system of your map, see Specify a coordinate system.

Remove the network dataset from the map before packaging.

More information

When maps are packaged, all datasets within the map are projected to match the spatial reference of the map. Projecting a network dataset into a different coordinate system may cause street segments to no longer be spatially coincident, negatively affecting the connectivity of your network elements.